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You need to be careful there as well, as you increase the TB size, you significantly impact not only fuel/air mass, you also change its velocity is such a manner that engine response off part throttle acceleration can become sloppy because of the sudden mixture velocity drop in the intake runners.
These systems need to be carefully matched on the flow bench to maximize response and power out put; otherwise the end result can be questionable to drive. Anyone that has ever installed too big a carburetor on an engine knows exactly what I am talking about, high RPM power gains, lousy drivability............ Bigger ain’t always better.
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“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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